If you're a student of Bitcoin data, Bitcoin Research Kit is an invaluable resource. Checkonchain has been extracting all our onchain data using a self-hosted instance since late last year, and it has changed everything for us. Every onchain metric you could possibly ask for, and more. Be sure to check it out, and support the project at http://bitview.space.(_Checkmate 🟠🔑⚡☢️🛢️)